/* 全局样式重置和基础设置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #00d4ff;
    --secondary-color: #0066ff;
    --accent-color: #ff6b35;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --bg-primary: #0a0a0a;
    --bg-secondary: #1a1a1a;
    --bg-card: #2a2a2a;
    --gradient-primary: linear-gradient(135deg, #00d4ff 0%, #0066ff 100%);
    --gradient-secondary: linear-gradient(135deg, #ff6b35 0%, #ff4757 100%);
    --shadow-glow: 0 0 20px rgba(0, 212, 255, 0.3);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.3);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    opacity: 0;
    transition: opacity 0.5s ease;
}

body.loaded {
    opacity: 1;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 页面加载动画 */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
}

.loading-content {
    text-align: center;
    color: var(--text-primary);
}

.loading-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 2rem;
}

.loading-logo i {
    font-size: 2.5rem;
    margin-right: 15px;
    animation: pulse 2s ease-in-out infinite;
}

.loading-progress {
    width: 200px;
    height: 4px;
    background: rgba(0, 212, 255, 0.2);
    border-radius: 2px;
    margin: 0 auto 1rem;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 2px;
    width: 0%;
    animation: loading 3s ease-in-out forwards;
}

@keyframes loading {
    0% { width: 0%; }
    50% { width: 70%; }
    100% { width: 100%; }
}

.loading-text {
    color: var(--text-secondary);
    font-size: 1rem;
    animation: fadeInOut 2s ease-in-out infinite;
}

@keyframes fadeInOut {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0, 212, 255, 0.3);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0, 212, 255, 0.5);
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 212, 255, 0.2);
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-logo i {
    margin-right: 10px;
    font-size: 1.8rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.nav-menu a:hover {
    color: var(--primary-color);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

.nav-menu a:hover::after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    margin: 3px 0;
    transition: 0.3s;
}

/* 英雄区域样式 */
.hero {
    height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: radial-gradient(ellipse at center, #1a1a2e 0%, #0a0a0a 70%);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.particles {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(2px 2px at 20px 30px, #00d4ff, transparent),
        radial-gradient(2px 2px at 40px 70px, #0066ff, transparent),
        radial-gradient(1px 1px at 90px 40px, #ff6b35, transparent),
        radial-gradient(1px 1px at 130px 80px, #00d4ff, transparent),
        radial-gradient(2px 2px at 160px 30px, #0066ff, transparent);
    background-repeat: repeat;
    background-size: 200px 100px;
    animation: particles 20s linear infinite;
}

@keyframes particles {
    0% { transform: translateY(0); }
    100% { transform: translateY(-100px); }
}

.neural-network {
    position: absolute;
    width: 100%;
    height: 100%;
}

.node {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

.node:nth-child(1) { top: 20%; left: 10%; animation-delay: 0s; }
.node:nth-child(2) { top: 40%; left: 20%; animation-delay: 0.5s; }
.node:nth-child(3) { top: 60%; left: 15%; animation-delay: 1s; }
.node:nth-child(4) { top: 30%; right: 10%; animation-delay: 1.5s; }
.node:nth-child(5) { top: 70%; right: 20%; animation-delay: 0.8s; }
.node:nth-child(6) { top: 50%; right: 30%; animation-delay: 1.2s; }

@keyframes pulse {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.5); }
}

.hero-content {
    text-align: center;
    z-index: 2;
    position: relative;
    max-width: 800px;
    padding: 0 20px;
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
    from { filter: drop-shadow(0 0 10px rgba(0, 212, 255, 0.5)); }
    to { filter: drop-shadow(0 0 20px rgba(0, 212, 255, 0.8)); }
}

.subtitle {
    display: block;
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--text-secondary);
    margin-top: 1rem;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-primary, .btn-secondary {
    padding: 15px 30px;
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid var(--primary-color);
    border-bottom: 2px solid var(--primary-color);
    transform: rotate(45deg);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) rotate(45deg) translateY(0); }
    40% { transform: translateX(-50%) rotate(45deg) translateY(-10px); }
    60% { transform: translateX(-50%) rotate(45deg) translateY(-5px); }
}

/* 通用区域样式 */
section {
    padding: 60px 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.section-header h2 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header p {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

/* 关于我们区域 */
.about {
    background: var(--bg-secondary);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2.5rem;
    align-items: center;
}

.about-text h3 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.about-text p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.feature {
    background: var(--bg-card);
    padding: 1.5rem;
    border-radius: 15px;
    border: 1px solid rgba(0, 212, 255, 0.2);
    transition: all 0.3s ease;
}

.feature:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-glow);
}

.feature i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.feature h4 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.feature p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.about-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.tech-circle {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    animation: rotate 20s linear infinite;
}

.tech-circle::before {
    content: '';
    position: absolute;
    width: 280px;
    height: 280px;
    border-radius: 50%;
    background: var(--bg-primary);
    z-index: 1;
}

.circle-content {
    z-index: 2;
    text-align: center;
    color: var(--primary-color);
}

.circle-content i {
    font-size: 4rem;
    margin-bottom: 1rem;
    display: block;
}

.circle-content span {
    font-size: 1.5rem;
    font-weight: 600;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* 产品介绍区域 */
.product-showcase {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
    align-items: center;
}

.product-image {
    display: flex;
    justify-content: center;
}

/* 产品轮播图 */
.product-carousel {
    position: relative;
    width: 100%;
    max-width: 400px;
}

.carousel-container {
    position: relative;
    width: 100%;
    height: 450px;
    overflow: hidden;
    border-radius: 20px;
}

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transform: translateX(100%);
    transition: all 0.5s ease-in-out;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.carousel-slide.active {
    opacity: 1;
    transform: translateX(0);
}

.carousel-slide.prev {
    transform: translateX(-100%);
}

.slide-caption {
    text-align: center;
    margin-top: 2rem;
    padding: 1rem;
    background: rgba(0, 212, 255, 0.1);
    border-radius: 10px;
    border: 1px solid rgba(0, 212, 255, 0.2);
}

.slide-caption h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.slide-caption p {
    color: var(--text-secondary);
    font-size: 1rem;
}

.carousel-controls {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-between;
    transform: translateY(-50%);
    pointer-events: none;
}

.carousel-btn {
    background: rgba(0, 0, 0, 0.7);
    color: white;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    pointer-events: all;
    backdrop-filter: blur(10px);
}

.carousel-btn:hover {
    background: var(--primary-color);
    transform: scale(1.1);
}

.carousel-indicators {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 2rem;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(0, 212, 255, 0.3);
    cursor: pointer;
    transition: all 0.3s ease;
}

.indicator.active {
    background: var(--primary-color);
    transform: scale(1.2);
}

.indicator:hover {
    background: var(--primary-color);
}

/* 轮播图内容样式 */
.ai-brain {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.ai-brain i {
    font-size: 4rem;
    color: var(--primary-color);
    animation: brainPulse 2s ease-in-out infinite;
}

.neural-pulse {
    position: absolute;
    width: 80px;
    height: 80px;
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    animation: neuralPulse 2s ease-in-out infinite;
}

@keyframes brainPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

@keyframes neuralPulse {
    0% {
        transform: scale(0.8);
        opacity: 1;
    }
    100% {
        transform: scale(1.5);
        opacity: 0;
    }
}

.multi-lang {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    width: 100%;
    max-width: 200px;
}

.lang-item {
    background: var(--gradient-primary);
    color: white;
    padding: 15px;
    border-radius: 10px;
    text-align: center;
    font-weight: 600;
    font-size: 1.2rem;
    animation: langFloat 3s ease-in-out infinite;
}

.lang-item:nth-child(1) { animation-delay: 0s; }
.lang-item:nth-child(2) { animation-delay: 0.5s; }
.lang-item:nth-child(3) { animation-delay: 1s; }
.lang-item:nth-child(4) { animation-delay: 1.5s; }

@keyframes langFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.device-mockup {
    width: 300px;
    height: 400px;
    background: linear-gradient(145deg, #2a2a2a, #1a1a1a);
    border-radius: 20px;
    padding: 20px;
    box-shadow: var(--shadow-card);
    border: 1px solid rgba(0, 212, 255, 0.3);
    position: relative;
}

.device-screen {
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.voice-wave {
    display: flex;
    align-items: center;
    gap: 5px;
}

.wave {
    width: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
    animation: wave 1.5s ease-in-out infinite;
}

.wave:nth-child(1) { height: 20px; animation-delay: 0s; }
.wave:nth-child(2) { height: 35px; animation-delay: 0.2s; }
.wave:nth-child(3) { height: 50px; animation-delay: 0.4s; }
.wave:nth-child(4) { height: 35px; animation-delay: 0.6s; }

@keyframes wave {
    0%, 100% { transform: scaleY(0.5); opacity: 0.5; }
    50% { transform: scaleY(1); opacity: 1; }
}

.product-info h3 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.product-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.product-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0.8rem;
    margin-bottom: 1.5rem;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    background: rgba(0, 212, 255, 0.1);
    border-radius: 8px;
    border: 1px solid rgba(0, 212, 255, 0.2);
}

.feature-item i {
    color: var(--primary-color);
    font-size: 1.2rem;
}

.product-specs {
    background: var(--bg-card);
    padding: 1.5rem;
    border-radius: 15px;
    border: 1px solid rgba(0, 212, 255, 0.2);
}

.product-specs h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.product-specs ul {
    list-style: none;
}

.product-specs li {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    padding-left: 20px;
    position: relative;
}

.product-specs li::before {
    content: '▶';
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

/* 扩展产品特性 */
.product-features-extended {
    margin-top: 1.5rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 15px;
    padding: 1.2rem;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-glow);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

.feature-content h5 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
    font-weight: 600;
}

.feature-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.5;
}

/* 客户评价区域 */
.testimonials {
    background: var(--bg-primary);
    padding: 80px 0;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.testimonial-card {
    background: var(--bg-card);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 20px;
    padding: 2rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.testimonial-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.testimonial-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-glow);
}

.testimonial-card:hover::before {
    transform: scaleX(1);
}

.testimonial-content {
    margin-bottom: 1.5rem;
}

.quote-icon {
    color: var(--primary-color);
    font-size: 2rem;
    margin-bottom: 1rem;
    opacity: 0.7;
}

.testimonial-content p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.8;
    font-style: italic;
    position: relative;
    padding-left: 1rem;
}

.testimonial-content p::before {
    content: '"';
    position: absolute;
    left: -0.5rem;
    top: -0.5rem;
    font-size: 3rem;
    color: var(--primary-color);
    opacity: 0.3;
    font-family: serif;
}

.testimonial-author {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    border-top: 1px solid rgba(0, 212, 255, 0.1);
}

.author-info h4 {
    color: var(--text-primary);
    margin-bottom: 0.3rem;
    font-size: 1.1rem;
}

.author-info span {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.rating {
    display: flex;
    gap: 0.2rem;
}

.rating i {
    color: #ffd700;
    font-size: 1rem;
}

/* 联系我们区域 */
.contact {
    background: var(--bg-secondary);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
}

.contact-info h3 {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: var(--primary-color);
}

.contact-methods {
    margin-bottom: 2rem;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--bg-card);
    border-radius: 10px;
    border: 1px solid rgba(0, 212, 255, 0.2);
    transition: all 0.3s ease;
}

.contact-method:hover {
    border-color: var(--primary-color);
    transform: translateX(5px);
}

.contact-method i {
    font-size: 1.5rem;
    color: var(--primary-color);
    width: 30px;
    text-align: center;
}

.contact-details h4 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.contact-details p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.social-media h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.social-links {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}

.social-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--bg-card);
    border-radius: 10px;
    text-decoration: none;
    color: var(--text-secondary);
    border: 1px solid rgba(0, 212, 255, 0.2);
    transition: all 0.3s ease;
}

.social-link:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateX(5px);
}

.social-link i {
    font-size: 1.5rem;
    width: 30px;
    text-align: center;
}

.contact-form {
    background: var(--bg-card);
    padding: 1.5rem;
    border-radius: 15px;
    border: 1px solid rgba(0, 212, 255, 0.2);
}

.contact-form h3 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

/* 微信二维码样式 */
.wechat-qr {
    text-align: center;
}

.qr-container {
    margin-bottom: 1.5rem;
}

.qr-placeholder {
    background: white;
    padding: 1.5rem;
    border-radius: 15px;
    border: 2px solid #07c160;
    box-shadow: 0 8px 32px rgba(7, 193, 96, 0.2);
}

.qr-placeholder i {
    font-size: 3rem;
    color: #07c160;
    margin-bottom: 1rem;
}

.qr-placeholder > p:first-of-type {
    color: #333;
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.qr-code {
    margin: 1.5rem 0;
}

.qr-image {
    width: 200px;
    height: 200px;
    border: 2px solid #07c160;
    border-radius: 10px;
    object-fit: cover;
    display: block;
    margin: 0 auto;
    transition: all 0.3s ease;
    cursor: pointer;
}

.qr-image:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 25px rgba(7, 193, 96, 0.3);
}

.qr-mockup {
    width: 200px;
    height: 200px;
    background: white;
    border: 2px solid #07c160;
    border-radius: 10px;
    margin: 0 auto;
    padding: 20px;
    position: relative;
    overflow: hidden;
}

.qr-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: repeat(4, 1fr);
    gap: 3px;
    width: 100%;
    height: 100%;
}

.qr-square {
    background: #333;
    border-radius: 2px;
    animation: qrPulse 2s ease-in-out infinite;
}

.qr-square:nth-child(1) { animation-delay: 0s; }
.qr-square:nth-child(2) { animation-delay: 0.2s; }
.qr-square:nth-child(3) { animation-delay: 0.4s; }
.qr-square:nth-child(4) { animation-delay: 0.6s; }
.qr-square:nth-child(5) { animation-delay: 0.8s; }
.qr-square:nth-child(6) { animation-delay: 1s; }
.qr-square:nth-child(7) { animation-delay: 1.2s; }
.qr-square:nth-child(8) { animation-delay: 1.4s; }
.qr-square:nth-child(9) { animation-delay: 1.6s; }
.qr-square:nth-child(10) { animation-delay: 1.8s; }
.qr-square:nth-child(11) { animation-delay: 0.1s; }
.qr-square:nth-child(12) { animation-delay: 0.3s; }
.qr-square:nth-child(13) { animation-delay: 0.5s; }
.qr-square:nth-child(14) { animation-delay: 0.7s; }
.qr-square:nth-child(15) { animation-delay: 0.9s; }
.qr-square:nth-child(16) { animation-delay: 1.1s; }

@keyframes qrPulse {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 1; }
}

.qr-text {
    color: #333;
    font-size: 1.2rem;
    font-weight: 600;
    margin: 1rem 0;
}

.btn-copy {
    background: linear-gradient(135deg, #07c160 0%, #05a050 100%);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 25px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 1rem;
}

.btn-copy:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(7, 193, 96, 0.4);
}

.btn-copy:active {
    transform: translateY(0);
}

.wechat-info {
    text-align: left;
    background: rgba(7, 193, 96, 0.1);
    padding: 1.2rem;
    border-radius: 10px;
    border: 1px solid rgba(7, 193, 96, 0.2);
}

.wechat-info h4 {
    color: #07c160;
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.wechat-info ul {
    list-style: none;
    padding: 0;
}

.wechat-info li {
    color: var(--text-secondary);
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.wechat-info li i {
    color: #07c160;
    font-size: 1rem;
}

/* 移除原有的表单样式，因为已经改为微信二维码 */

/* 页脚样式 */
.footer {
    background: var(--bg-primary);
    border-top: 1px solid rgba(0, 212, 255, 0.2);
    padding: 2rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 2rem;
    margin-bottom: 1.5rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.footer-logo i {
    margin-right: 10px;
    font-size: 1.8rem;
}

.footer-info p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1.5rem;
}

.footer-section h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(0, 212, 255, 0.2);
    color: var(--text-secondary);
}

.icp-info {
    margin-top: 0.5rem;
    font-size: 0.9rem;
}

.icp-info a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s ease;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    border: 1px solid transparent;
}

.icp-info a:hover {
    color: var(--primary-color);
    border-color: rgba(0, 212, 255, 0.3);
    background: rgba(0, 212, 255, 0.1);
}

/* 键盘导航样式 */
.keyboard-navigation *:focus {
    outline: 2px solid var(--primary-color) !important;
    outline-offset: 2px !important;
}

.keyboard-navigation .btn-primary:focus,
.keyboard-navigation .btn-secondary:focus {
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.3) !important;
}

.keyboard-navigation .carousel-btn:focus {
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.5) !important;
}

.keyboard-navigation .indicator:focus {
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.5) !important;
}

/* 减少动画偏好设置 */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* 高对比度模式支持 */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #00ffff;
        --text-primary: #ffffff;
        --text-secondary: #cccccc;
        --bg-primary: #000000;
        --bg-secondary: #111111;
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-logo {
        font-size: 1rem;
    }
    
    .nav-logo i {
        font-size: 1.5rem;
        margin-right: 8px;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: rgba(10, 10, 10, 0.95);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        backdrop-filter: blur(10px);
        padding: 2rem 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .subtitle {
        font-size: 1.2rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .about-content,
    .product-showcase,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .testimonial-card {
        padding: 1.5rem;
    }
    
    .features {
        grid-template-columns: 1fr;
    }
    
    .product-features {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .tech-circle {
        width: 200px;
        height: 200px;
    }
    
    .tech-circle::before {
        width: 180px;
        height: 180px;
    }
    
    .circle-content i {
        font-size: 2.5rem;
    }
    
    .circle-content span {
        font-size: 1.2rem;
    }
    
    .device-mockup {
        width: 250px;
        height: 350px;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    /* 微信二维码移动端适配 */
    .qr-placeholder {
        padding: 1.5rem;
    }
    
    .qr-image {
        width: 160px;
        height: 160px;
    }
    
    .qr-mockup {
        width: 160px;
        height: 160px;
        padding: 15px;
    }
    
    .qr-placeholder i {
        font-size: 2.5rem;
    }
    
    /* 轮播图移动端适配 */
    .product-carousel {
        max-width: 300px;
    }
    
    .carousel-container {
        height: 350px;
    }
    
    .device-mockup {
        width: 250px;
        height: 320px;
    }
    
    .carousel-btn {
        width: 35px;
        height: 35px;
        font-size: 0.9rem;
    }
    
    .slide-caption {
        margin-top: 1rem;
        padding: 0.8rem;
    }
    
    .slide-caption h4 {
        font-size: 1.1rem;
    }
    
    .slide-caption p {
        font-size: 0.9rem;
    }
    
    .wechat-info {
        padding: 1rem;
    }
    
    .wechat-info h4 {
        font-size: 1.1rem;
    }
    
    .btn-copy {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .nav-logo {
        font-size: 0.9rem;
    }
    
    .nav-logo i {
        font-size: 1.3rem;
        margin-right: 6px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .btn-primary, .btn-secondary {
        padding: 12px 24px;
        font-size: 1rem;
    }
    
    .contact-form,
    .feature,
    .product-specs {
        padding: 1.5rem;
    }
    
    /* 微信二维码小屏幕适配 */
    .qr-placeholder {
        padding: 1rem;
    }
    
    .qr-image {
        width: 140px;
        height: 140px;
    }
    
    .qr-mockup {
        width: 140px;
        height: 140px;
        padding: 10px;
    }
    
    .qr-placeholder i {
        font-size: 2rem;
    }
    
    .qr-text {
        font-size: 1rem;
    }
    
    .btn-copy {
        padding: 8px 16px;
        font-size: 0.85rem;
    }
    
    .wechat-info {
        padding: 0.8rem;
    }
    
    .wechat-info li {
        font-size: 0.9rem;
    }
    
    /* 轮播图小屏幕适配 */
    .product-carousel {
        max-width: 250px;
    }
    
    .carousel-container {
        height: 300px;
    }
    
    .device-mockup {
        width: 200px;
        height: 280px;
    }
    
    .ai-brain i {
        font-size: 2.5rem;
    }
    
    .neural-pulse {
        width: 60px;
        height: 60px;
    }
    
    .multi-lang {
        max-width: 150px;
        gap: 10px;
    }
    
    .lang-item {
        padding: 10px;
        font-size: 1rem;
    }
    
    /* 扩展特性移动端适配 */
    .product-features-extended {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .feature-card {
        padding: 1rem;
        flex-direction: column;
        text-align: center;
    }
    
    .feature-icon {
        align-self: center;
        margin-bottom: 0.5rem;
    }
    
    .feature-content h5 {
        font-size: 1rem;
    }
    
    .feature-content p {
        font-size: 0.9rem;
    }
}